Metallic hoop for barrels.



M. E. LOBLEY.

METALLIC HOOP FOR BARRELS.

APPLICATION FILED OCT. 19, 1914.

1,169,272. Patented Jan. 25, 1916.

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BROOKLYN, NEW YORK.

,METALLIC HOOP FOR 'BABBELS.

Specification of Letters Patent.

Application filed October 19, 1914. 7 Serial No. 867,285.

upon barrels, 61 0., for the purposeof securing the staves, 810., in position. Heretofore these strips of metal have been made W1th driving beads and flanges of various] shapes in crosssectmn, all obgectlonable on account of the excessive wldth of metal re -Y quired for their formation, and becausethey are apt to be broken or distorted when the strip is bent to form the hoop. Obviously such drive beads or flanges require theuse of a marginal area of metal over and above that of the broad fiatbearing or body portion of the hoop contacting directly withthe stavesand this excess adds materially to the cost of manufacture, While afiordlng only a drive which is easily broken down or impaired, not only in the process of'bending of the metal to form the hoop ashore: tofore mentioned, but also because the driving operation tends to curl, compress or otherwise distort the drive bead or flange.

It is the mainobject of my invention to obviate these objectionable features, and to afford a comparatively cheap, effective sheet metal hoop for the purposede'signated, 111

which aminimum Width ofsheet metal strip is sufiicient to aiford a suitable 'ClIlVB edge entirely Within the area of contact of the hoop with the staves, a drive edge that cannot be broken down or impaired by bending the strip into hoop form, nor by subse quent contact With the driving tool.

The invention comprises {essentially a hoop of the character designated having a driving edge consisting of a continuous,

sinuous, undulatory series of corrugations,I

protuberant upon the outer face of the hoop only, and extendingtoward but not as far as the longitudinal center ofthehoop (less than one third the Width ofthe hoop, by

preference),the inner terminal 50f each corrugation thus formed merging into the body of the hoop 1n thereverse curve the length of which at the exterlor medlal' line or longitudinal outer crest of the Wave or corrugation is of less length than the Width or the corrngatlon, whereby the corruga tions are stiffened and reinforced transversely of their length and better adapted to resist the strain of the driving tool, so that the shape of the hoop is maintained in lts integrity with a broad fiat inner co n-l tacting surface for intimate engagement With the opposed outer surface of the barrel.

and conforms Without injuryv or distortion to the bending. of the stripfto form the hoop; the corrugations interlock Where the ends ofthe strip overlap to form the hoop, and thereby strengthen the hoop at its otherwise Weakest portion by reinforcing the, rivets; and the longitudinal elasticity imparted to the driving edge by the corrugati ons causes the hoop to adapt itself more perfectly to the external surfaces of the staves, so that the hoop clings thereto in a most effective manner,the broad, fiat contacting surface of the hoop being supplemented by the teeth-like inner undulations some extent, so as to act as retardants against retractile slip, looseness, or play,

Inthe accompanying drawings, Figure 1, 1s a perspective view of the drive hoop; Fig] 2, an edgeview of the overlapping ends thereof; Fig.3, a front VlSW of the parts shown in Fig, 2; Fig. i, a cross section of the hoop and adjacent portions of a stave; Flg. 5, a' cross section of the drive hoop The hoop H, consistsof a single strip, off sheet metal it, having on one edge transverse corrugations h, forminga continuous'se ries of undulatory curves extending from the inner side plane if, of the strip outward laterally. That is to say the bottom or inner crest o, of each innercurve coin-V cides with and is a continuation of the in nor body plane 7& ofthe strip h, the pro tuberantportions or outer crests 0, of the curves extending beyond the outer plane surface if, thereof, as'shown more particularly in Figs. 4 and 5. By reference to these ares it Wlll also be seen that the corruga-,

tions 72/, eXtend inward less than one third the w dth of the hoop (preferably, as in the drawings'abo'ut one fourth the Width there 7 of as in actual practice) and that thefiinner end'of each corrugation terminates-and Patented Jan. 215,- 1916 I The driving edge thus formed readilyyields so of the corrugations which impinge'against the staves,e1nbedd1ng themselves therein to of hoops in large quantities.

' center of the currugation and in alinement w1th its outer crest 0, is less than the mean width of the corrugation so that the latter is stiffened and reinforced both longitudinally and transversely to withstand the driving strain, while at the same time more 7 than three-fourths of the interior surface of the body of the hoop is left free and unobstructed for actual, direct, and intimate contact with the bilge of the barrel to which the hoop is applied.

To form the hoop H, the strip h, of suitable length is bent with the liat plane sur face 7L2, inward, the ends of the strip overlapping and interlocking as shown in Figs. 1 and 2, and being riveted together through the fiat body portions in the usual manner. It has been found that this interlocking of the corrguations it, where the ends of the strip overlap, greatly increases the strength of the joint,so much so that the strip will yield and tear laterally under test strain while the rivets hold intact, and hence it is possible in this construction of hoop to use smaller rivets than heretofore without weakening the hoop,a result of practical value and importance in the manufacture reason the economy effected in the width of material used to form this drive hoop 1s of ,vast importance where such hoops are turned out by the million, as for sugar barrels and the like, where the saving of a small fraction of an inch of the width of the metal mg effect of the relatively short corrugations, I am enabled to use thinner sheet metal than heretofore, since my corrugated edge drive bears the brunt of the tightening op eration without danger of disintegration or collapse. In fact, for that matteiythe strain during the tightening operation being transverse to the corrugations the latter are able to stand and preserve their shape and integrity under anv pressure to which they may be thus subjected, owing largely to the transverse stiffening effected by the relatively short reversed curvature c of the metal at their ends where they merge into the body of the hoop, so that the fiat body portion thereof is fully reinforced and protected against any strain to which it could sheet metal in the formation of the hoops than has heretofore been possible, and thus F or a like effect a double economy in manufacture in strength with a minimum of material and cost, andall this While affording a hoop superior in simplicity and effectiveness of structure. weight involved in the use of narrower strips of lighter material may be considered as equivalent to at least three cents per barrel of the slack barrel hoop typeto which latter my improvements are particularly adapted, although not necessarily limited thereto.

It is thus obvious that the making of the drive entirely within the maximum width of the hoopris a most valuable and distinctive feature of my invention, since it not only simplifies and cheapensthe structure but also affords a snugly fitting hoop which clings tenaciously to the staves,the broad flat surface of relatively thin material adapting itself perfectly to the contour of the staves, while the stiffened yet elastic drive edge tends to impinge therein,-

the crests c, of the inner curves of the corruand the usual stress of the drivin o Jeration,sufiiciently so at least to prevent any slip or retractile in vement of the hoop under ordinary conditions of use while not interferring with the further drive of the hoop if necessary to compensate for shrinkage.

Used as a slack barrel hoop my device effectually holds the staves in position and prevents their slipping, overlapping &c., in the manner heretofore well known in the art relating to slack barrel hoops, and which it is one of the objects of my invention to obviate. Furthermore my corrugated edge drive renders the hoop more springy and elastic and better adapted to conform to And the combined saving in the slight irregularities of shape or structure apt to occur in the manufacture of slack barrels. The drive edge is also better adapted than the bead drive to slide over skids in the handling of the loaded barrels, since it is less likely to catch thereon.)

It is to be noted that my corrugations are not only short as related to the width of the hoop but also that the side edges thereof are parallel, not convergent. That is to say the corrugations are of the same uniform width transversely from top to bottom, even where they blend into the flat body of the hoop. This is clearly shown in the drawings, the only exception to this parallelism being the reversed curvatures 0 shown more particu-.

larly in Figs. 4 and 5, Where the outer crests 0', of the corrugations h, merge into the flat main body portion h,of the metallic strip. Comparing Fig. 4, with Fig. 2, it

will thus be seen that my drive edge is composed of corrugations in which the metal has been made to assume reverse curve lines only, there being a total absence of longituf the general plane of the strip, and the-drive edge is attained wholly by the formationof reversed curves 0r wave lines which from their very nature stiffen and reinforcethe constituent corrugations longitudinally as well as transversely, thus creating perfect,

ideal annular impact-receiving means of" great and uniform strength, blending with and into the broad flat body of the strip in such manner. as to impart and distribute the strain of the driving tool evenly to the parts and side of the hoop which contact directly and positively with the opposed surface of the barrel to which the hoop is applied. As a result of this specificstructure I am enabled to use a comparatively light weight or grade of sheet metal in the formation of a hoop of prescribed'strength and tenacity, thereby effecting economy in cost, transportation, manipulation, &c.

lVhat I claim as my invention and desire.

to secure by Letters Patent is, c

1. A hoop of the character designated, comprising a strip of sheet metal formed with a driving edge consisting of a continuous series of sinuous, undulatory corrugations protuberant upon the outer .face

only of the hoop so as to leave the inner surface of the inner crests of the corrugations in alinement with the flat inner face of the hoop, said corrugations being of substantially equal width with parallel edges extending transversely toward the,

longitudinal center of the hoop for a distance not exceeding one-third the width of the hoop, the overlapping ends of the strip being united to complete the hoop.

2. A hoop of the character designated, comprising a strip of sheet metal formed with driving edge consisting of a continuous series of sinuous, undulatory corrugations proturberant upon the outer face only of the hoop so as to leave the inner face of the inner crests of the corrugations in alinement with the flat inner face of the hoop, said corrugations being of substantially equal width with parallel edges extending transversely toward the longitudinal ceni ter of the hoop for a distance not exceeding one third of the Width of the hoop and merging intothe body of the latter at their innerends in the form of reversed curves,

the overlapping ends of the strip being united to complete the hoop.

3. A hoop of the character designated, comprising a strip of sheet metal formed with a driving edge consisting of a continuous series of sinuous, undulatory corrugationsproturberant upon the outer face onlyofthe hoop so as to leave the inner face of the inner crests of the corrugations in alinement with the flat inner face of the hoop, said corrugations being of substantially equal width with parallel edges extending transversely toward the longitudinal center of the hoop for a distance not exceeding one third of the width of the hoop andmerging into the body of the latter at their inner ends in the form of reversed, curves of less length than the corrugation width, the overlapping ends of the strip being united to complete the hoop.

MAX E. LOBLEY. Witnesses THOMAS A. SULLIVAN, Jos. A. YOUNG.

Copies of this patent may be o'btainedfor five cents each; by addressing the Commissioner of Patents,

' Washington, D. 8; 

